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Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a signal in the context of Linux?
💡 Hint: Think about how a computer alerts a program.
Question 2
Easy
What does the SIGINT signal typically indicate?
💡 Hint: Consider user actions that stop running programs.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the purpose of the signal() function?
- To send signals between applications
- To register a signal handler
- To handle system calls
💡 Hint: Think about how we inform the program about what to do when a signal arises.
Question 2
True or False: A signal handler can be defined using the sigaction() function.
- True
- False
💡 Hint: Consider both functions that relate to signals.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a simple C program that registers a signal handler for SIGTERM. The program should perform a cleanup operation (e.g., closing files) and then terminate gracefully when SIGTERM is received.
💡 Hint: Think about what resources need to be cleaned before exiting.
Question 2
Explain how user-defined signal handlers can create race conditions in concurrent applications. Provide an example where this might occur.
💡 Hint: Consider situations where multiple threads may be waiting on signals or shared locks.
Challenge and get performance evaluation